我试图在django测试中创建虚拟redis。我的tests.py如下所示

class TestInitiatePositive(SimpleTestCase):
databases = '__all__'
def setUp(self):
    pass

@responses.activate
def test_initiate_payment(self):
    self.credentials = {
        'username': '*****',
        'password': '*****'
    }
    User.objects.create_user(**self.credentials)
    self.client.login(username='*****',password='*****')

    abc.objects.create(user_id_id ='1',nick_name = 'KONTO', access_token ='eyJ0eXAiOiJ')

    response = self.client.post('/hello/initiate/',
                                data={"from": "*****", "to": "*****"})
    self.assertContains(response, 'dummyUrl', status_code=200)
    self.assertTemplateUsed(response, 'hello/redirecting.html')

一旦数据被插入表，模型信号就会被触发，celery 将从模型信号中提取任务并将其插入redis

@receiver(post_save, sender=access_tokens)
def access_token_added(sender, instance, created,**kwargs):
  if created:
    accessToken.delay(x)

我得到以下错误

Error 60 connecting to****:6379. Operation timed out.

我需要创建虚拟redis来完成这个测试用例。